package org.example.domain.strategy.service.rule.chain.factory;

import lombok.*;
import org.example.domain.strategy.model.entity.StrategyEntity;
import org.example.domain.strategy.repository.IStrategyRepository;
import org.example.domain.strategy.service.rule.chain.ILogicChain;
import org.springframework.stereotype.Service;

import java.util.Map;

@Service
public class DefaultChainFactory {
    private final Map<String, ILogicChain> logicChainGroup;
    private final IStrategyRepository repository;

    public DefaultChainFactory(Map<String, ILogicChain> logicChainMap, IStrategyRepository repository) {
        this.logicChainGroup = logicChainMap;
        this.repository = repository;
    }

//    public ILogicChain openLogicChain(Long strategyId){
//        StrategyEntity strategy=repository.queryStrategyEntityByStrategyId(strategyId);
//        String[] ruleModels=strategy.ruleModels();
//        if(null ==ruleModels ||0==ruleModels.length)return logicChainGroup.get("default");
//
//        ILogicChain logicChain=logicChainGroup.get(ruleModels[0]);
//        ILogicChain current=logicChain;
//        for (int i = 1; i <ruleModels.length; i++) {
//            ILogicChain nextChain=logicChainGroup.get(ruleModels[i]);
//            current = current.appendNext(nextChain);
//        }
//
//        current.appendNext(logicChainGroup.get("default"));
//        return logicChain;
//
//    }
    public ILogicChain openLogicChain(Long strategyId) {
        StrategyEntity strategy = repository.queryStrategyEntityByStrategyId(strategyId);
        String[] ruleModels = strategy.ruleModels();//数据库字段顺序保证责任链装配顺序

        // 如果未配置策略规则，则只装填一个默认责任链
        if (null == ruleModels || 0 == ruleModels.length) return logicChainGroup.get("default");

        // 按照配置顺序装填用户配置的责任链；rule_blacklist、rule_weight 「注意此数据从Redis缓存中获取，如果更新库表，记得在测试阶段手动处理缓存」
        ILogicChain logicChain = logicChainGroup.get(ruleModels[0]);
        ILogicChain current = logicChain;
        for (int i = 1; i < ruleModels.length; i++) {
            ILogicChain nextChain = logicChainGroup.get(ruleModels[i]);
            current = current.appendNext(nextChain);
        }

        // 责任链的最后装填默认责任链
        current.appendNext(logicChainGroup.get("default"));

        return logicChain;
    }


    @Data
    @Builder
    @AllArgsConstructor
    @NoArgsConstructor
    public static class StrategyAwardVO {
        /** 抽奖奖品ID - 内部流转使用 */
        private Integer awardId;
        /**  */
        private String logicModel;

        /*抽奖奖品规则*/
        private String awardRuleValue;
    }

    @Getter
    @AllArgsConstructor
    public enum LogicModel {

        RULE_DEFAULT("rule_default", "默认抽奖"),
        RULE_BLACKLIST("rule_blacklist", "黑名单抽奖"),
        RULE_WEIGHT("rule_weight", "权重规则"),
        ;

        private final String code;
        private final String info;

    }




}
